MATLAB: Need code for median filtering for image enhancement

feature extractionfiltering

median filtering code

i solve the problem by using imgaussfilt

 https://www.mathworks.com/help/images/apply-gaussian-smoothing-filters-to-images.html?searchHighlight=gaussian%20filter&s_tid=doc_srchtitle

thanks

How about just:

    h = 1/3*ones(3,1);
    H = h*h';
    % im be your image
    imfilt = filter2(H,im);